With a small brush use detailed view of the houses, streets, lights and other objects. If you want to paint from the birds eye, that's even better. The key here is to be as precise and as detailed as possible.

But in the distance, where there is a place for the horizon or the sky or even a sea, you can take a large brush and create a contrast with the fine lines up front.

You can choose whatever colors you like - your panorama can be of various versions of red or of blue colors. What about a green panorama? I bet this would be a remarkable choice.